Reply To: Increasing hammer spring tension on the Crown

Forums PCP Airguns Increasing hammer spring tension on the Crown Reply To: Increasing hammer spring tension on the Crown

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weatherby
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wolfie

Weatherby

At 130 bar can I expect Mk 2 heavy  to reach say 840 to 860 fps? Having seen erratic fps with increased hst via slider I assume too low reg . Previous setting of slider was consistent 818 fps.

 

safe shooting

 

Hey wolfie, I had mine shooting the 25 heavies at about 268m/s.

Reg. was set to 160bar, and adjusted hst slider set screw carefully until it didn't gain any speed anymore.

Barrel was a LW poly without choke, that might make a slight difference as well.

 

Cheers,

 

Gijs